JP2009046070A - Pillar structure - Google Patents

Abstract

An object of the present invention is to eliminate the need for accuracy guarantee when a reinforcing member is mounted in a pillar, and to reduce the number of steps required for manufacturing the pillar.
A reinforcing member disposed in a B pillar is fastened to the B pillar, and an upper end portion is inserted into a roof side rail from the lower side of the vehicle. Fastened to the roof side rail 16. Since the joining by welding is not used when the reinforcing member 14 is attached, tuning for assuring the accuracy of the welded portion, for example, adjustment of a press die is unnecessary.
[Selection] Figure 4

Description

  The present invention relates to a pillar structure.

As a vehicle body structure of a vehicle, a first closed section structure having a closed section formed by a combination of a plurality of members, and a cross section of the first closed section structure disposed inside the first closed section structure A device having a second closed cross-section structure in which the cross-section changes along the internal shape and the closed cross-section is formed by a single member is disclosed (see Patent Document 1).
JP 2004-219150 A JP 2004-306896 A

  However, in the conventional example described in Patent Document 1 described above, the upper portion of the reinforcing member (center pillar reinforcement) is welded to the roof side rail, and measures to increase the accuracy of the welded portion are required. High-strength steel and ultra-high-strength steel are generally used for such reinforcing members, but these materials have low workability during press molding, and tuning for assuring the accuracy of the weld location, for example, adjustment of the press die Was necessary.

  In view of the above facts, the present invention aims to reduce the man-hours required for manufacturing pillars by eliminating the need for accuracy guarantees when attaching reinforcing members in the pillars.

  The invention according to claim 1 is at least coupled to a roof side rail extending in the vehicle longitudinal direction on both sides in the vehicle width direction at the upper part of the vehicle body, and extending in the vehicle vertical direction on the vehicle body side portion. A pillar joined to a pillar outer panel on the outer side in the direction, and disposed in the pillar and fastened to the pillar, and an upper end portion is inserted into the roof side rail from the lower side of the vehicle. And a reinforcing member fastened to the rail.

  In the pillar structure according to claim 1, the reinforcing member disposed in the pillar is fastened to the pillar, and the upper end portion is inserted into the roof side rail from the vehicle lower side so that the roof side rail. Therefore, it is not necessary to guarantee the accuracy of the welding location as in the prior art. For this reason, the man-hour required for pillar manufacture can be reduced.

  According to a second aspect of the present invention, in the pillar structure according to the first aspect, an upper end portion of the reinforcing member extends to an upper portion of the roof side rail and is inserted into a hole provided in the upper portion. It is said.

  In the pillar structure according to claim 2, since the upper end portion of the reinforcing member extends to the upper portion of the roof side rail and is inserted into the hole provided in the upper portion, the side of the pillar is caused by the side collision of the vehicle. When a collision load is input and the pillar or the roof side rail is deformed, the upper end portion of the reinforcing member comes into contact with the peripheral edge portion of the hole portion of the roof side rail. Thereby, the side impact load input to the pillar can be efficiently transmitted to the roof side of the vehicle via the reinforcing member and the roof side rail.

  According to a third aspect of the present invention, in the pillar structure according to the first or second aspect, the reinforcing member is fastened in the pillar after the pillar is coupled to the side of the vehicle body.

  In the pillar structure according to claim 3, since the reinforcing member is fastened in the pillar after the pillar is coupled to the side of the vehicle body, compared with the case where the reinforcing member is firmly coupled in advance in the pillar. The change in accuracy of the pillar when the pillar is coupled to the vehicle body side portion can be suppressed.

  As described above, according to the pillar structure according to claim 1 of the present invention, it is possible to reduce the man-hours required for manufacturing the pillars without requiring accuracy guarantee when attaching the reinforcing member in the pillar. Excellent effect is obtained.

  According to the pillar structure according to claim 2, an excellent effect that the side collision load input to the pillar can be efficiently transmitted to the roof side of the vehicle via the reinforcing member and the roof side rail. Is obtained.

  According to the pillar structure of the third aspect, it is possible to obtain an excellent effect that a change in accuracy of the pillar when the pillar is coupled to the vehicle body side portion can be suppressed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 2, the pillar structure S according to the present embodiment relates to the structure of a B pillar 12 as an example of a pillar in a vehicle body 10 (see also FIG. 1), and includes the B pillar 12 and a reinforcing member 14. Yes.

  The B pillar 12 is a skeleton member that is at least coupled to a roof side rail 16 that extends in the vehicle front-rear direction on both sides in the vehicle width direction at the top of the vehicle body, and that extends in the vehicle vertical direction on the vehicle body side portion. And the pillar outer panel 20 on the outer side in the vehicle width direction are joined. A rocker 22 extends in the vehicle front-rear direction at the lower part of the vehicle body side, and the lower end of the B pillar 12 is coupled to the rocker 22.

  As shown in FIG. 3, the pillar inner panel 18 is formed in a cross-sectional hat shape that protrudes inward in the vehicle width direction. On the other hand, the pillar outer panel 20 is formed in a cross-sectional hat shape that protrudes outward in the vehicle width direction. The pillar inner panel 18 and the pillar outer panel 20 are joined to each other at flanges 18F and 20F provided on both sides in the vehicle front-rear direction, whereby the B pillar 12 has a closed cross-sectional structure.

  3 and 4, the roof side rail 16 is a skeleton member having a closed cross-sectional structure including an inner panel 24 and an outer panel 26, and extends in the vehicle front-rear direction on both sides in the vehicle width direction of the upper part of the vehicle. Yes. The inner panel 24 is formed in a cross-sectional hat shape that is convex toward the inside of the vehicle, and the outer panel 26 is formed in a cross-sectional hat shape that is convex toward the outside of the vehicle. The inner panel 24 and the outer panel 26 are joined, for example, at a flange 28 on the inner side in the vehicle width direction and a flange (not shown) on the outer side in the vehicle width direction, whereby the roof side rail 16 is configured in a closed cross-sectional structure. Yes. The flange 28 on the inner side in the vehicle width direction is joined to, for example, a roof panel 32 or a roof cross member (not shown).

  4 and 5, a recess 26B is formed in the vertical wall portion 26A of the outer panel 26 in the roof side rail 16, and a bolt 36, for example, is inserted into the recess 26B and fixed by, for example, welding. Has been. Thereby, the threaded portion of the bolt 36 protrudes into the roof side rail 16.

  A hole 26D into which the upper end portion 14A of the reinforcing member 14 can be inserted is formed in the ceiling portion 26C of the outer panel 26 as an example of the upper portion of the roof side rail 16. Further, in the vertical wall portion 24A of the inner panel 24 of the roof side rail 16, a working hole 24B used for fastening the nut 38 to the bolt 36 is provided in a portion located in the axial direction of the bolt 36. .

  Note that the upper end 18 </ b> A of the pillar inner panel 18 is joined to, for example, a vertical wall portion 24 </ b> A of the inner panel 24 in the roof side rail 16. Further, the upper end 20 </ b> A of the pillar outer panel 20 is joined to, for example, a vertical wall portion 26 </ b> A of the outer panel 26 in the roof side rail 16.

  As shown in FIGS. 2 to 4, a side member outer panel 34 is provided outside the B pillar 12 and the roof side rail 16 in the vehicle width direction. As shown in FIG. 4, the upper portion of the side member outer panel 34 covers the roof side rail 16, and the end 34 </ b> A on the inner side in the vehicle width direction of the upper portion is a flange on the inner side in the vehicle width direction of the roof side rail 16. At 28, it is joined together with the roof panel 32. 3, the side member outer panel 34 is formed in a hat shape that is convex outward in the vehicle width direction, and flanges 34F of the pillar inner panel 18 are provided at flanges 34F provided on both sides in the vehicle front-rear direction. 18F and the flange 20F of the pillar outer panel 20 are joined together.

  The reinforcing member 14 is, for example, a press-formed product of a high-tensile steel plate or an ultra-high-strength steel plate. The reinforcing member 14 is disposed in the B pillar 12 and fastened to the B pillar 12. It is inserted into the vehicle from the vehicle lower side and fastened to the roof side rail 16. As shown in FIG. 3, the reinforcing member 14 is formed in, for example, a cross-sectional hat shape that protrudes outward in the vehicle width direction.

  Specifically, as shown in FIGS. 2 and 6, the lower end portion 14 </ b> B of the reinforcing member 14 is bolted to the inner surface of the pillar outer panel 20 together with, for example, the upper door hinge 40. A nut 42 is fixed to the vertical wall portion 14C of the lower end portion 14B in advance by welding, for example. Then, by inserting the bolt 44 from the outside in the vehicle width direction of the side member outer panel 34 and fastening it to the nut 42, the door hinge 40 is fastened and fixed to the B pillar 12, and at the same time, the lower end portion 14 B of the reinforcing member 14 is fastened and fixed to the B pillar 12. It has come to be. As shown in FIG. 2, the lower door hinge 46 is fastened and fixed at a height position lower than the door hinge 40 in the B pillar 12.

  As shown in FIGS. 4 and 5, the upper end portion 14 </ b> A side of the reinforcing member 14 is inserted into the roof side rail 16 from, for example, an opening 26 </ b> E provided on the lower side of the outer panel 26. The upper end portion 14A of the reinforcing member 14 further extends to the upper portion of the roof side rail 16, that is, the ceiling portion 26C of the outer panel 26, and is inserted into a hole portion 26D provided in the ceiling portion 26C. As a result, as shown in FIG. 5, the upper end portion 14 </ b> A of the reinforcing member 14 penetrates the roof side rail 16 from the vehicle lower side to the vehicle upper side.

  In the upper end portion 14 </ b> A of the reinforcing member 14, a recess 14 </ b> D that is recessed on the outer panel 26 side is formed at a position corresponding to the recess 26 </ b> B of the outer panel 26. In a state where the back surface of the recess 14D and the back surface of the recess 26B are in contact with each other, a bolt 36 fixed to the outer panel 26 side is inserted into the recess 14D. By fastening a nut 38 to the bolt 36 through 24B, the upper end portion 14A of the reinforcing member 14 is fastened and fixed to the outer panel 26 of the roof side rail 16.

  The reinforcing member 14 is inserted into the B pillar 12 in advance before the B pillar 12 is coupled to the vehicle body side, the upper end portion 14A is temporarily fixed by the bolt 36 and the nut 38, and the lower end portion 14B is fixed by the bolt 44 and The nut 42 is temporarily fixed. After the B pillar 12 is coupled to the side of the vehicle body, the bolt 36 and the nut 38, and the bolt 44 and the nut 42 are finally tightened, and the reinforcing member 14 is fastened to the B pillar 12.

  As shown in FIGS. 4 and 5, between the upper end portion 14 </ b> A of the reinforcing member 14 and the peripheral edge portion of the hole portion 26 </ b> D of the outer panel 26, from the viewpoint of preventing the generation of abnormal noise during normal travel, A moderate gap is provided.

(Function)
This embodiment is configured as described above, and the operation thereof will be described below. In the pillar structure S, the reinforcing member 14 disposed in the B pillar 12 is fastened to the B pillar 12 by a bolt 44 and a nut 42 (FIG. 6), and the upper end portion 14A is the roof side rail 16. It is inserted into the vehicle from the lower side and is fastened to the roof side rail 16 by bolts 36 and nuts 38 (FIG. 4), and welding is not used. Accuracy guarantees can be made unnecessary. For this reason, the man-hour required for manufacture of the B pillar 12 can be reduced.

  In particular, in the pillar structure S, after the B pillar 12 is coupled to the side of the vehicle body, the reinforcing member 14 is fastened in the B pillar 12, that is, the final tightening of the bolt 36 and the nut 38, and the bolt 44 and the nut 42. Since the final tightening is performed, the accuracy change of the B pillar 12 when the B pillar 12 is coupled to the side of the vehicle body is compared with the case where the reinforcing member 14 is firmly coupled to the B pillar 12 in advance. Can be suppressed.

  Further, as shown in FIGS. 4 and 5, in the B pillar 12 structure, the upper end portion 14A of the reinforcing member 14 extends to the upper portion of the roof side rail 16, that is, the ceiling portion 26C of the outer panel 26, and the ceiling portion 26C. Since it is inserted into the hole 26D provided, as shown in FIG. 7, a side collision load F is input to the B pillar 12 due to a side collision of the vehicle, and the B pillar 12 and the roof side rail 16 are deformed. At this time, the upper end portion 14A of the reinforcing member 14 comes into contact with the peripheral edge portion of the hole portion 26D of the roof side rail 16. As a result, the side impact load F input to the B pillar 12 passes through the reinforcing member 14 and the roof side rail 16 to the roof side of the vehicle, for example, the roof panel 32 and the roof cross member (not shown). Can efficiently transmit in the direction. Moreover, by this, the deformation | transformation to the vehicle width direction inner side of B pillar 12 can be suppressed.

  In the above embodiment, the B pillar 12 has been described as an example of the pillar. However, the present invention is not limited to this. For example, in the case of a vehicle in which the pillar is provided from the A pillar to the D pillar, the C pillar is used. It is also possible to apply to.

  Further, although the hole 26D is formed in the ceiling 26C of the outer panel 26 in the roof side rail 16 as the upper part of the roof side rail 16, the upper part of the roof side rail 16 is not limited to this.

  Further, although bolt fastening is used as means for fastening the reinforcing member 14 to the B pillar 12 or the roof side rail 16, the fastening means is not limited to this, and for example, rivet fastening may be used.

  As shown in FIG. 4, in the present embodiment, the upper end portion 14A of the reinforcing member 14 is inserted into the hole portion 26D of the ceiling portion 26C of the outer panel 26 and protrudes upward from the ceiling portion 26C to the vehicle. However, the relationship between the upper end portion 14A and the hole portion 26D is not limited to this, and the upper end portion of the reinforcing member 14 is deformed when the vehicle body is deformed by the input of the side collision load F as shown in FIG. 14A and the peripheral part of hole part 26D should contact | abut, and it should just be the arrangement | positioning which can transmit a load. Therefore, for example, the upper end of the reinforcing member 14 may be flush with the upper surface of the ceiling portion 26C.

It is a perspective view of the vehicle which has a pillar structure. FIG. 2 is an enlarged cross-sectional view taken along arrow 2-2 in FIG. 1 showing a pillar structure. FIG. 3 is an enlarged cross-sectional view taken along arrow 3-3 in FIG. It is an expanded sectional view showing the upper part of a pillar structure. It is an expansion perspective view which shows the upper part of a pillar structure. It is an expanded sectional view showing the lower part of a pillar structure. When a side collision load is input to the B pillar, the upper end portion of the reinforcing member abuts on the peripheral edge of the hole of the roof side rail, and the side collision load is transmitted to the roof side of the vehicle. It is an expanded sectional view.

Explanation of symbols

10 body 12 B pillar (pillar)
14 Reinforcing member 14A Upper end 16 Roof side rail 18 Pillar inner panel 20 Pillar outer panel 26C Ceiling (upper part of roof side rail)
26D hole S pillar structure

Claims (3)

A pillar side panel 18 on the inner side in the vehicle width direction and a pillar outer panel on the outer side in the vehicle width direction are coupled to at least a roof side rail extending in the vehicle longitudinal direction on both sides in the vehicle width direction at the upper part of the vehicle body. With joined pillars,
A reinforcing member disposed in the pillar and fastened to the pillar, and having an upper end inserted into the roof side rail from the vehicle lower side and fastened to the roof side rail;
The pillar structure characterized by having.   The pillar structure according to claim 1, wherein an upper end portion of the reinforcing member extends to an upper portion of the roof side rail and is inserted into a hole provided in the upper portion.   The pillar structure according to claim 1 or 2, wherein the reinforcing member is fastened in the pillar after the pillar is coupled to the side of the vehicle body.

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